Printed 'On His Majesty's Service' registered cover franked with 1938 2/- blue & purple and 1948 1½d scarlet GVI issues (SG 157 & 162) tied by KINGSTOWN cs's dated 30 NO 1948 with printed black on white 'ST. VINCENT' registration label and blue airmail label alongside. Addressed to UK with TRINIDAD transit cds on reverse.